They have cut away most of the overhanging floor and are trying get things stabilized to remove the last three Corvettes from the sinkhole. They poured sand over the one visible Spyder Corvette to help protect it while they cut away the concrete. Two of the Corvettes have not been seen since they fell into the hole. The photo shows one lonely fellow digging away at the bottom of the hole and I think he's got a lot of work ahead of him!
See it live at: www.corvettemuseum.org/webcam/camera6.shtml
Update: they just found the edge of the hood of the 1.5 millionth Corvette.